146 
ILLUSTRATIONS OF THE GENUS CAREX. 
in rostrum longiusculum attenuate rostro ferrugineo, 
ore hyalino antice fisso patentibus marginibus e medio 
sursum serrulatis leviter nervatis, squama ovata sub- 
acuta ferruginea marginibus albo-hyalino longioribus.— 
C. Gaudiniana, Guthnick, Flora, i. 241 (1832) ; Gaudin 
in Add. FI. Helv. vii. 660 (1833); Gay, Ann. Sc. Nat. 
x. 305 (1838), sub C. microstachya; Koch, 871; Lange, 
49; Reich, t. 202; Hoppe et St. icon. C. microsta¬ 
chya, ft FI. Foss. 285. (Tab. OCCCLXVII.) 
Hab. In Helvetia, prope Thun. 
Stolonifera. Culmus 4-8-pollicaris, apice obtusangulus, lsevis, 
rarius scabriusculus. Folia culmo breviora, canaliculato- 
setacea, apice plano-compressis. Bractea squamseformis, nunc 
cuspidata. Spica 9—10 lin. longa, basi 2 lin. lata. Spicula 
terminalis 5—7 lin. longa, ssepius apice vel basi apiceque, 
rarius omnino feminea vel mascula, reliquse 1—2 lin. longse. 
Squamce conformes, ferruginese, margine albo-hyalinse. Peri¬ 
gynium (immatururn ) 1 to-- i 9 o lin. longum, X¥ lin. latum, viride, 
rostro ferrugineo. 
Gay considers the Swiss plant to be inseparable from O. micro¬ 
stachya, while Koch, Lange, Hoppe, and Reichenbaeh separate it. 
The difference is in the shorter spike; lanceolate perigynium, 
which is longer than the ferruginous squamae, and not appressed ; 
the shorter culm, with obtuse angles, and generally smooth; and 
the setaceous leaves. Lange places it in his Fchivatx, next to C. 
stellulata, while he inserts C. microstachya in his Oanescentes, 
between G. glareosa and G. JSforvegica; and Andersson has nearly 
the same affinity. Fries, on the contrary, associates it with his 
Chordorrhizce. Tuckerman places both C. microstachya and O. 
Gaudiniana in his Arenarice, in juxtaposition with his Stellulata ; 
while Koch separates both from the androgynous group, and 
places them, with 0 . mucronata, among the true Carices (not 
Vigneai). I think the affinity of O. Gaudiniana is with 0. elon- 
gata, and the resemblance between it and G. microstachya is so 
great that they must be associated together. I have not seen ma¬ 
ture perigynia of either species. 
335. C. Hilairei (Boott) ; spica oblonga pallida invo- 
lucrata apice dense imbricato-mascula basi flosculis femi- 
neis 3-5 instructa ; stigmatibus 3 ; perigyniis late ova- 
libus vel orbiculatis rostratis, ore integro vel emarginato 
enerviis marginibus alatis serrulatis pallidis, squama 
rotundato-ovata infima longe foliacea surama cuspidata 
brevioribus, racheola lineari lsevi inserta prsedita. (Tab. 
CCGCLXVIII.) 
Hab. In Brasil, merid., St. Hilaire {Herb. Mus. 
Paris). 
Radix caespitosa, fibrosa. Culmus 10-20 pollices longus, 
filiformis, lsevis, triqueter, rigidus, basi foliatus. Folia ^-1 
lin. lata, culmo breviora, rigida, carinata, scabra. Spica 5-7 
lin. longa, apice 1, basi 2 lin. lata, flosculis femineis 3-5, mas- 
culis pluribus instructa. Squamce masculce arete imbricate, 
rotund ato-obtusse, (sub lente) tenuissime ciliolatse, muticse, 
pallide castanese, nervo viridi, summse steriles; feminea infe- 
riores 2, plus minus longe setaceo foliacese, superiores cuspi- 
datse. Perigynium (vix immatururn ) 2 lin. longum, 1 T S ¥ lin. 
latum, appressum, enerve, concavo-convexiusculum, superne 
(sub lente) asperulum, ad latera transversim corrugatum, 
rostro excurvo. Achenium trigonum. Racheola basi dilatata 
subsequans. Stylus basi incrassatus. 
A Sellowiana, Schlecht., differt culmo lsevi rigido ; foliis 
rigidis; squamis infimis foliaceis, masculis obtusis ciliolatis. 
I am indebted to M. Spacb for a knowledge of this species. 
The perigynium was not fully mature, and apparently nerveless. 
336. C. polytrichoides (Muhlenberg); spica oblonga 
vel abbreviata laxiflora viridi apice mascula plerumque 
nuda; stigmatibus 3 ; perigyniis ellipticis obtusis, ore 
emarginato striato-nervosis appressis viridibus demum 
pallide castaneis, squama ovata acuta vel cuspidata alba 
nervo viridi subduplo longioribus. — C. polytrichoides, 
Muhl. 230; Sch/c. f. 138; Will'd. 213; Kunth, 423; 
Steud. 185 ; FI. Bor. Am. 209 ; Dewey, 9, 258 ; Tor. 
Gyp. 296 ; Mon. 404; Carey, 510; Chapm. 536; 
Sartwell. Kxs. n. 6. C. leptalea, Wahl. Act. 139. C. 
microstachya, Mich. (Tab. CCCCLXIX.) 
ITab. In America septentrionali.— Rocky Mountains. 
Cumberland House to Florida. 
Csespitosa. Radix fibrosa. Culmus capillaceus, 4-15-pol- 
Jicaris, acutangulus, scaber. Folia |-f lin. lata, ssepe invo- 
lucrata, mollia, culmo breviora vel longiora. Spica 2-9 lin. 
longa, apice filiformi, mascula basi 1—H lin. lata; flosculis 
masculis 2-5 vel pluribus, femineis 2-9 alternatim contiguis. 
Squamce albidse, nervo viridi ; masculce subdistichse, muticse, 
obtusse vel acute; feminea; inferiores longius cuspidata; ; in- 
fima ssepe setaceo-foliacea, spicam superans. Perigynium 
1to~2to lin. longum, T 5 ¥ - T 8 o lin. latum, plano-subtriquetrum, 
superne vacuum, stipitatum, stipite obconico. Achenium - 8 ¥ 
lin. longum, T 5 ¥ lin. latum, obovatum, triquetrum, basi styli 
sequali abrupte apiculatum. 
Wahlenberg describes his G. leptalea as having two stigmas, but 
no other author alludes to this variation. I have not seen this 
species from the Rocky Mountains or the Pacific coast. Drejer, 
from the form of the perigynium, allies it to C. pallescens, L., but 
it is nearer to G. loliacea. 
337. C. microstachya (Ehrhart) ; spica oblonga an- 
gusta straminea, e spiculis 1—5 contiguis, terminali cy- 
lindrica mascula vel apice vel basi apiceque feminea, 
reliquis femineis brevioribus nudis; bractea squamse- 
formi; stigmatibus 2 ; perigyniis ovatis sensim breve 
rostratis, ore integro vel fisso antice oblique secto hya¬ 
lino marginibus ten niter serrulatis enerviis appressis, 
squama late ovata obtusa vel subacuta margine demum 
albo-hyalina angustioribus brevioribus.-— C. microstachya, 
Mrh. Beitr. 3, 72; Wahl. Act. 146; Willd. 250; 
Lange, 56; Andersson, 60, t. 3,/. 11; Beichenbach, 5, 
t. 202 ; Koch, 871 ; Hoppe et St. icon.; Gay, Ann. Sc. 
Nat. 10, 305 (1838); FI. Bossica, 4, 285. (Tab. 
CCCCLXX.) 
Hab. In Suecia, Lapponia, Rossia media. 
Stolonifera. Culmus acute triqueter, scaber, 9-pollicaris- 
2-pedalis, gracilis. Folia culmo breviora, canaliculata, demum 
evoluta, plana, -§ lin. lata, apice triquetra, scabra. Bractea 
squamseformis. Spica 6—14 lin. longa, basi 2—3 lin. lata. 
Spicula terminalis, 6-7 lin. longa, £-J lin. lata, omnino mas¬ 
cula, vel apice summo feminea, basique ssepe flosculis femineis 
1-4 (discretis) instructa. Spiculce feminese 2-4, breves, pau- 
ciflorse, vel oblongse, 2—4 lin. longse, 1 lin. latse ; raro defi- 
cientes. Squamce conformes, marginibus pallide fulvis, demum 
albo-hyalinis. Perigynium ( immatururn ) Ift to hn. longum, 
t 5 o~ t 6 ¥ lin. latum. 
The taller, acute-angled, rough culm, broader leaf ; the ovate 
perigynium, which is appressed and not longer than the strami¬ 
neous squama, distinguish this from O. Gaudiniana. The termi¬ 
nal spike is ofteuer male. 
